https://leetcode.com/problems/substring-with-concatenation-of-all-words/description/?envType=study-plan-v2&envId=top-interview-150 class Solution { public: vector<int> findSubstring(string s, vector<string>

https://leetcode.com/problems/minimum-size-subarray-sum/description/?envType=study-plan-v2&envId=top-interview-150 class Solution { public: int minSubArrayLen(int target, vector<int>& nums) { int

https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/description/?envType=study-plan-v2&envId=top-interview-150 class Solution { public: vector<int> twoSum(vector<int>& numbers,

https://leetcode.com/problems/text-justification/description/?envType=study-plan-v2&envId=top-interview-150 class Solution { public: vector<string> fullJustify(vector<string>& words,

https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string/description/?envType=study-plan-v2&envId=top-interview-150 class Solution { public: int strStr(string haystack, string needle) { int m = haystack.size(), n